package demo3;

/**
 * 克隆接口
 */


class Money implements Cloneable{
    public double money=12.5;

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}

class Student implements Cloneable {
    public int age;
    public Money m=new Money();

    public Student(int age) {
        this.age = age;
    }

    @Override
    protected Object clone() throws CloneNotSupportedException {
//        return super.clone();
        Student tmp=(Student)super.clone();
        tmp.m=(Money)this.m.clone();
        return tmp;
    }

    @Override
    public String toString() {
        return "Student{" +
                "age=" + age +
                '}';
    }
}

public class Test {
    public static void main(String[] args) throws CloneNotSupportedException {
        Student student1=new Student(10);
        Student student2=(Student)student1.clone();
        System.out.println(student1.m.money);
        System.out.println(student2.m.money);
        System.out.println("================");
        student2.m.money=100;
        System.out.println(student1.m.money);
        System.out.println(student2.m.money);
    }
}
